This is the testing was talking about, that should be done before a newby goes on Tysabri....Quoted from the above link...
Thanks K.
Quote:
Biogen says it is more interested in developing a blood test that might offer doctors clues as to which individual patients have an elevated risk of getting PML from the start, and which ones are less likely to become infected.
The key to determining this could lie in a relatively common lab technology, known as Elisa, that can detect whether a patient has antibodies in the blood made to fight the JC virus that can awaken from a dormant state to cause PML in Tysabri patients.
About half of adults are estimated to have these antibodies, which suggest that JC virus is lurking in the body with the potential to become an opportunistic infection in at least some Tysabri patients.
The remaining patients are thought to have no JC virus in their systems, and therefore would be considered less likely to get PML, Sandrock says.
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